I actually I wasn't referring to your post.
Considering Asia is a male-chauvinist society, I know that at times ppl in all levels of the social scale expect the guys to behave a certain way. Even though the guy will spend a lot of money, he still has to sometimes stand his ground and be pissed off if the women push him too hard for something or annoy him in some way to retain the respect of those in society. Not every rich kid/guy gets the chicks, just the ones who are not pushovers and have a fun personality.
What you did in Macau, I have done a few times in HK, not to such a high spending level, nonetheless the same. It can be fun to be entertaining a few chicks together at a nice bar/restaurant. Nothing ever happens in the end.
But there are some collateral benefits, going out with a few hotties does nothing but enhance my social/public persona should anyone see me out with these girls. Get better service from staff, jealous looks from guys, envious looks from other cute/hot girls in the vicinity. Plus, if the girls had a good time, they may introduce me to other girls (who are probaly more down to earth) at a future social event / function.
Now would you do the same with a pork chop in macau and invite a few of her pork chop friends to join you?